77results about How to "No difficulty" patented technology

The invention discloses an optical fiber distributed disturbance sensor which comprises an optical fiber laser, a bidirectional distributed Raman amplification unit and a photoelectric detection and signal processing unit, wherein an output end of the optical fiber laser is connected with a first coupler; two output ends of the first coupler are respectively connected with an acoustic optical modulator and a third coupler; the bidirectional distributed Raman amplification unit is connected with the acoustic optical modulator by a first circulator and is connected with the third coupler by the first circulator; the photoelectric detection and signal processing unit is connected with the third coupler and used for receiving an interference-enhanced optical signal in the third coupler, converting the optical signal into an electric signal and carrying out subsequent data processing. In the optical fiber distributed disturbance sensor, the back scattering light intensity and the signal-to-noise ratio of the tail end of the optical fiber can be improved by the bidirectional distributed Raman amplification structure so as to improve the sensing distance of the optical fiber distributed disturbance sensor; and the light power received by a detector can be improved through the interference of a part of continuous light output by a light source and the back scattering light, so as to improve the signal-to-noise ratio of the system. The sensor is a combination of conventional photoelectric devices, has a simple structure and is easy to realize.

The invention belongs to the technical field of text classification and provides a method and system for judging the text similarity. The method and system for judging the text similarity are used forovercoming the defects which exist in three kinds of text similarity judgement algorithms in the prior art separately. The method comprises the steps 1, a vector space model is established and subjected to text quantization to form a processible object; 2, a Siamese network is used for establishing a text semantic similarity extraction model, in the Siamese network, a text semantic extraction network and a similarity judgement network are in series connection, and meanwhile optimization is conducted at the sample training stage; 3, based on semantic characteristic expression of samples at thetraining stage, a text similarity calculation function of the included angle cosine based on characteristic vectors and a final loss function are established; 4, two pieces of text to be tested are input, after the text to be tested is subjected to semantic characteristic extraction based on the Siamese network, the cosine included angle distance of the two vectors is calculated, a threshold value is set, and when the cosine included angle distance of the two vectors is larger than the threshold value, the similarity is judged, otherwise, the dissimilarity is judged.

The invention discloses shield synchronous grouting slurry prepared from shield waste slurry and a construction method thereof, each cubic meter of the shield synchronous grouting slurry comprises the following components: 100-200kg of cement or 40-100kg of lime, 300-450kg of fly ash, 200-750kg of the waste slurry, 600-1300kg of sand, 0-450kg of water and 0-12kg of a water reducer. The waste slurry pollution problems can be alleviated, the amount of raw materials of mortar can be reduced, the shield waste slurry is mainly used in backwall grouting material for replacement of bentonite and arts of water in backwall grouting mortar, and the environmental pollution problems caused by the waste slurry can be reduced.

A color display unit is provided, which allows color display to be performed with high efficiency in utilizing light as compared with a prior type using all of RGB color filters. The color display unit includes a light source section having plural kinds of color LEDs, and includes a display section controlling transmissivity of light from the light source section in synchronization with light emission control by the light source section, to achieve desired color display. The display section has a full-color transmittable region and a partially transmittable region. The full-color transmittable region allows all color components of the light to be transmitted, while the partially transmittable region inhibits passage of one or more in the color components of the light. The display section controls the transmissivity of the light independently for each of the full-color transmittable region and the partial transmittable region.

The invention discloses a prestressed high-strength concrete (PHC) pile-based multiple high jet pedestal pile construction method, which comprises the following steps of: statically pressing a PHC pile to the designed depth of a soil layer, drilling to the depth below the bottom of the PHC pile through the hollow part of the PHC pile by a multiple high-pressure spiral jet drill rod, performing multiple tube construction at the bottom of the PHC pile to form an enlarged head cavity greater than the diameter of the PHC pile and in accordance with the design requirement, and then filling the enlarged head cavity to form an enlarged head. The method has obvious economic benefit; and compared with other pile types acquiring the same bearing capacity, the PHC pile-based multiple high jet pedestal pile has obvious economic advantage.

In the present invention, the composite dielectric ball in metal / dielectric material is arranged according to close-packed mode at three-dimensional space. The core of this composite dielectric ball is spherical metal granule as outer layer is dielectric wrapping layer, or the core is supporting ball made of organic or inorganic material, middle sandwich layer is metal ball shell and outer layer is dielectric wrapping layer.

A biochemical process for treating the high-concentration coking sewage with high contents of ammoniacal nitrogen and S includes such steps as mixing it with the water returned from multi-layer mineralized garbage bioreactor bed, laying aside, taking supernatant, treating is said bioreactor bed, and returning part of the treated water for mixing with said coking sewage and the rest back to production line or discharging it.

The invention relates to a distance measuring method for adjusting a femtosecond laser resonator cavity to realize optical sampling. A reflector is placed at a reference position, and a computer collects cross-correlation fringes and repetition frequency changes at the same time, and Hilbert transforms the cross-correlation fringes. , find the instantaneous repetition frequency of the femtosecond laser corresponding to the highest point of the cross-correlation fringe envelope, the change of the repetition frequency is realized by adjusting the resonator of the femtosecond laser, at this time, the optical pulse of the signal source optical path and the local oscillator source optical path The light pulses are completely coincident, and the absolute distance of the reflector at the reference position is calculated. Then, the absolute distance of the second reflector at the position to be measured is calculated by the same method, and the measured distance is finally obtained. The invention utilizes a stable long optical fiber as a delay line, combines the pulse time-domain cross-correlation of a femtosecond laser, and realizes a ranging method and a ranging system for optical sampling by adjusting a resonant cavity, thereby effectively improving measurement accuracy.

The invention discloses an upper transverse beam and lower transverse beam construction method for a bridge tower. The method comprises the following steps: before normal construction, constructing hanging systems, tensioning first hanging systems on both sides of the tower respectively, and tensioning two groups of second hanging systems between the first hanging systems, wherein adjacent first hanging systems and second hanging systems can operate in a matching way or operate independently; performing upper transverse beam construction, constructing and pouring a first-segment side form, a second-segment side form and a third-segment side form, and constructing and pouring an upper transverse beam bottom form; after completion of upper transverse beam construction, pouring a lower transverse beam which is formed by means of prefabrication, performing transportation and installation through the hanging systems, and finally connecting an upper transverse beam with the lower transverse beam. Through adoption of a bracket-free construction technology, the construction cost is reduced, the construction period is shortened, and the construction safety is enhanced; the upper transverse beam and the lower transverse beam are constructed stepwise, so that the construction difficulty is lowered. Meanwhile, the upper transverse beam and the lower transverse beam are constructed stepwise, so that the construction difficulty is lowered, and the construction quality is enhanced.

A wind turbine rotor blade (1) with a suction side (13) and a pressure side (15) is provided. It comprises a cylindrical root portion (3) an airfoil portion (5) defining the suction side (13) and the pressure side (15), and a transition portion (7) which is located between the airfoil portion (5) and the root portion (3). The transition portion (7) has a transition profile changing from the airfoil of the airfoil portion (5) to the cylindrical profile of the root portion (3). The leading section of the transition profile is cylindrical and the trailing section of the transition profile is elongated. In the rotor blade, the maximum chord length of the airfoil portion (5) is at least the maximum chord length of the transition portion (7). In addition, the transition profile comprises a section with a concave curvature (25) on the pressure side (15) of the rotor blade (1).

The invention relates to a sophoridine nanoliposome drug and the preparation method. The invention provides a sophoridine nanoliposome drug and the material and the content of the material are as follows: 350-500 compound of HSPC for injection and Vitamin E with a mass ration 9.8: 0.2; 20 to 30 compound of cholesterol and Beta-sitosterol with a mass ratio 1 to 3:1; sophoridine 10 to 25; 125 to 200 compound of dextran 40 and mannitol with a mass ratio 1: 7 to 9; 5 to 10reduced glutathione; and poloxamer F-6835-40. The invention also provides the preparation method of the sophoridine nanoliposome. The drug provided in the invention can be used to treat adenocarcinoma, inflammation, gout, progressive disease of the central nervous system, to relieve pain and treat viral myocarditis.

The invention relates to the field of spinning equipment and discloses a cloth barrel clamping device. The cloth barrel clamping device comprises a box body of an inner cavity structure and a compressing mechanism. A slide hole is formed in the box body; the compressing mechanism comprises two positioning bars which are parallel to each other, the two positioning bars are same in length, and one ends of the positioning bars are fixedly connected to the box body; the compressing mechanism also comprises a push rod, the push rod is located between the two positioning bars, the push rod is longerthan the positioning bars, one end of the push rod is slidably connected to the box body through the slide hole, and two connecting rods are arranged at one end, far from the box body, of the push rod. The invention aims to provide the cloth barrel clamping device to solve the problem that an existing cloth barrel clamping device damages cloth.

The invention provides a system and a method for treatment of contact hydrolysis-algae micro-aeration composite wastewater. The system is a complex food chain and microorganism system composed of anaerobion, amphimicrobe, aerobic bacteria and algae; the main body adopts a reaction tank with the water depth being 5-6 m; a filler with the height of 3.5-4 m and large in specific surface area is filled in the reaction tank; water at the upper layer of the filler has the depth of 0.5-1.0 m; a row of aeration facilities is uniformly distributed at the bottom of the water outlet side of the reaction tank; air is introduced to enable a water outlet end to keep the oxygen dissolving rate being about 2 mg / L, and concentration of the dissolved oxygen is in a gradient increase trend in the water flowing direction. According to the method for treatment of wastewater, under the condition of air introduction and combined action of the anaerobion, amphimicrobe, aerobic bacteria and algae, carbonization, nitration, denitrification, absorption and adsorption reactions are performed simultaneously in a reaction system, so that COD, BOD, NH3-N, total nitrogen, total phosphorus and other contaminants in the wastewater are removed. The system has the advantages of low energy consumption and cost, small difficulty in management, and relative small occupied area.

The invention provides a method for producing PCV2 Cap protein by using a silkworm bioreactor, and a Cap protein product. The method comprises the steps that: a coding gene sequence of the PCV2 Cap protein is cloned to a recombinant baculovirus; the recombinant insect baculovirus is used in direct injection infection of silkworm larva or silkworm pupa; and PCV2 Cap protein is recovered, separated, and purified. The method provided by the invention has the characteristics of simple operation and short period. A difficult and low-success-rate step which is virus homologous recombination plaque screening is avoided, such that an experiment period is greatly shortened. The operation is simple, the cost is low, and a post-extraction method is simple. The method provided by the invention is suitable for industrialized productions.

The invention provides a box culvert jacking device which comprises a box culvert, three layers of steel gratings, jet concrete, four rows of pipe curtains and joist steel.The four rows of pipe curtains are arranged to be a hollow cube, every two adjacent upper-row pipe curtains are connected through the corresponding joist steel, every two adjacent left-row pipe curtains are connected through the corresponding joist steel, every two adjacent right-row pipe curtains are connected through the corresponding joist steel, one layer of steel gratings are connected with the row of pipe curtain located on the upper portion in the hollow cube, the other two layers of steel gratings are connected with the two rows of pipe curtains on the two side faces in the hollow cube respectively, each layer of steel gratings are filled with jet concrete, and the box culvert is inserted into the hollow cube.The invention further provides a box culvert jacking method.By means of the box culvert jacking device, difficulty appearing in construction can be overcome, and higher benefits can be created.By means of the box culvert jacking method, subgrade settlement can be effectively controlled, and the method is suitable for box culvert jacking under the hard geological condition.

The invention discloses a mechanical external oxygen lance anti-falling device. The device comprises a pulley block, device bases, a spring set, anti-falling hooks, an outer frame and an oxygen lancetrolley, anti-falling supports are arranged in the outer frame, the top end of the oxygen lance trolley is fixedly connected with the outer frame through a steel wire rope, and the spring set is arranged at the bottom end of the pulley block; and the device bases are arranged on the two sides of the pulley block and the two sides of the spring set, first pin shafts are movably installed on the device bases, the device bases are movably connected with the anti-falling hooks through the first pin shafts, second pin shafts are arranged on the anti-falling hooks, and the anti-falling hooks are installed on the oxygen lance trolley through the second pin shafts in a limited mode. According to the device, by adopting an internal and external combination mode, the anti-falling hooks are arrangedinside the frame during working, a supporting support is arranged outside a stand column of the oxygen lance frame, and the two do not intersect with each other; and once the steel wire rope is broken, the anti-falling hooks rotate along with the pulley and then are opened and extend out to be in contact with the anti-falling supports outside the stand column, and the purpose of preventing the oxygen lance from falling is achieved.

The invention discloses a building model presentation and interaction method based on a virtual reality technology, and the method comprises the steps: carrying out the processing of a building modelin an Skp format, exporting the building model in an fbx format which can be used in Unity software, and importing a generated file in the fbx format into the Unity software; in Unity software, building a displayed scene, and according to the complexity degree of building design, arranging and dividing all components in the building model into a plurality of sub-parts; writing a gesture action script file, designing more than three gesture actions for displaying a scene, and operating the building model, so as to observe the building model from multiple angles; and deploying a built scene in the HoloLens to realize virtual reality display of the building model. According to the invention, various conversions such as scaling, rotation, movement and the like can be randomly carried out on the model in an unlimited virtual space through operation; when model observation is carried out, various gesture actions can be carried out very skillfully, and the difficulty of gesture operation doesnot exist.

The invention relates to a tamoxifen citrate emplastrum and a preparation method thereof. A tamoxifen citrate micro emulsion is prepared into a transdermal emplastrum, and the transdermal emplastrum is divided into four layers: an anti-adhesion layer, a viscose layer, a back lining layer and a medicine storage layer. The tamoxifen citrate micro emulsion is used as a drug effect ingredient and comprises tamoxifen citrate used as an active ingredient, polysorbate 80 used as a surfactant, propylene glycol used as a cosurfactant, pure water or distilled water, and the like. Besides the drug effect ingredient, some non-polar polymers, a plasticizer, a tackifier, transdermal enhancer and an antioxidant are also added to the emplastrum. Compared with the traditional dosage forms such as tablets, solutions, oral cavity disintegrants, dispersants and external micro emulsion preparations, the tamoxifen citrate emplastrum has the prominent advantages of safety, low toxicity, convenient and simple use and accurate drug dosage.

The invention relates to a spinning melt filtering apparatus. The spinning melt filtering apparatus comprises a foundation support, a filtering cylinder holder, a melt inlet, a melt outlet, a hydraulic mechanism and a filtering module, wherein the filtering cylinder holder is fixed on the upper portion of the foundation support, the upper portion of the filtering cylinder holder is provided with afiltering cylinder, the front upper portion of the filtering cylinder holder is provided with a filtering module cavity to be cleaned, and the rear upper portion is provided with a filtering module cavity to be used; the melt inlet and the melt outlet correspond to each other in the lateral direction and are respectively connected with the filtering cylinder; the hydraulic mechanism is fixed on the foundation support at the position corresponding to the rear end of the filter cylinder holder; the filtering module is arranged in the filtering cylinder cavity and corresponds to a position between the melt inlet and the melt outlet, the middle portion of the filtering module is provided with a filtering net seat cavity, a filtering net is arranged in the filtering net seat cavity, when the filtering net is blocked to change the filtering module to the filtering module to be cleaned, the filtering module stored in the filtering module cavity to be used is pushed to the filtering cylindercavity under the action of the hydraulic mechanism so as to replace the filtering module to be cleaned, and the filtering module to be cleaned enters the cleaning filtering module cavity. By adoptingthe spinning melt filtering apparatus, the structure of the hydraulic mechanism is simplified; the filtering module replacement efficiency is high; and the convenience in maintenance and cleaning canbe realized.

The invention discloses shock absorbing shoes of women. The shoes comprise soles, the soles are provided with toe caps and soles, venting holes are formed in the toe caps, lace holes are formed in uppers, the lower sides of the soles are provided with non-slip patterns, the soles are provided with heels, airbags are mounted in the heels, the airbags are fixed inside the heels by shock absorbing columns, the rear sides of the uppers are provided with shoe hooks, the insides of the toe caps are provided with soft cushions, hollow sweat-absorbent layers are disposed on the inner sides of the uppers, insoles are disposed on the upper sides of the soles, sweat-absorbing layers are disposed on the upper layers of the insoles, and airbag layers are disposed on the heel portions of the insoles. The shoes adopt double damping of the shock absorbing columns and the airbags so that a person can feel no vibration when walking.

The invention provides a geometric shaping microwave resonator. The resonator comprises a metal shell and two waveguide flange plates, a shaping resonant cavity is formed in the metal shell; the shaping resonant cavity is formed by removing a shaping circular ring body, a first shaping hemisphere and a second shaping hemisphere from a hemisphere cavity; the inner wall of the hemispherical cavity comprises a radial tangent plane and a hemispherical surface connected to the radial tangent plane; the radial tangent plane is perpendicular to the end face where the rectangular waveguide port of thewaveguide flange plate is located; the shaping circular ring body is formed by recessing the circumference of the radial section towards the interior of the hemispherical cavity, the first shaping hemisphere is formed by recessing the hemispherical surface towards the interior of the hemispherical cavity, the second shaping hemisphere is formed by recessing the radial section towards the interiorof the hemispherical cavity, and the cavity wall of the shaping resonant cavity is arranged smoothly. According to the geometric shaping microwave resonator provided by the invention, the requirements of high Q value, far parasitic resonance and non-radiative upper stop band of the resonant cavity are met at the same time through a geometric shaping method, and the process compatibility of the resonant cavity structure to the subtractive manufacturing and additive manufacturing technologies is remarkably improved.

The invention relates to a weight-losing capsule based on a biodegradable stent material. The weight-losing capsule is prepared by coating the biodegradable stent material in a capsule housing. The invention further provides a preparation method and application of the weight-losing capsule. The advantage of the weight-losing capsule is expressed as follows: spinning a biodegradable material by using the electrostatic spinning, performing brittle failure by liquid nitrogen, grinding to be a thread, dispersing, forming by thermal induction, and improving the thermal induction forming ability thereof by using gelatin; exchanging solvents, and preparing the biodegradable stent material after freeze-drying; and extruding the material to be a minimum volume, and coating in the capsule housing toprepare the weight-losing capsule. After the weight-losing capsule is administered, the capsule housing is corroded and broken in the stomach, the internal biodegradable stent material is rapidly expanded after absorbing water, and a partial space in the stomach is occupied, thereby the food acceptable daily intake is reduced, and the effect of dieting and losing weight is achieved.

The invention discloses a hot-punching forming process which comprises the steps of (1) levelling and punching a raw material steel coil through a leveler so as to obtain a required workblank slice; (2-1) dividing holes and edges in products into two grades according to the accuracy requirement, designing a hot forming mold, and designing a punch head and a cutter block for forming holes and edgesat one grade in the hot forming mold; (2-2) after sufficiently heating the workblank slide in a heating furnace for a setting time, using a mechanical clamping jaw for transferring the heated slice into the hot forming mold, and punching the slice into a required shape; (3) cooling; and (4) laser cutting: utilizing a laser cutting machine for heating a workpiece, cutting to obtain a hole and an edge in the other grade accuracy, and removing redundant slice parts. According to the hot-punching forming process provided by the invention, without influencing the hot-punching forming efficiency, punching and trimming are added in the hot forming process at the same time, so that the total cutting path for laser cutting in the later process is reduced, the circulation time and the cost of laserare reduced, and the production efficiency is improved.

A magnetic signal recording method of the present invention superimposes a recording edge of a recordable region on a region where there is substantial equality between (a) a coercive force in a region on a magnetic recording medium in which the coercive force has been varied, and (b) magnetic field intensity, which is generated by a magnetic recording head. The magnetic field intensity has a magnetic field distribution whose lowering rate in an in-track position is maximum in the region. The magnetic recording head, whose recording magnetic field is distributed in a rectangular shape, is used in this way so as to form a magnetic bit having a rectangular shape that is suitable for reproduction performed by a common reproduction head having a rectangular reproduction region, thereby improving an S / N of a reproduction signal dramatically.

The invention discloses shield synchronous grouting slurry prepared from shield waste slurry and a construction method thereof, each cubic meter of the shield synchronous grouting slurry comprises the following components: 100-200kg of cement or 40-100kg of lime, 300-450kg of fly ash, 200-750kg of the waste slurry, 600-1300kg of sand, 0-450kg of water and 0-12kg of a water reducer. The waste slurry pollution problems can be alleviated, the amount of raw materials of mortar can be reduced, the shield waste slurry is mainly used in backwall grouting material for replacement of bentonite and arts of water in backwall grouting mortar, and the environmental pollution problems caused by the waste slurry can be reduced.

The invention provides a liquid absorbent for removing hydrogen sulfide and application thereof. The absorbent is composed of the following components in percentage by mass: 30-50% of hexahydrotriazine-pyridine mixture, 10-20% of acetonitrile and the balance of water. By utilizing the characteristics of high selectivity, high reaction speed, nontoxic products and the like of the hexahydrotriazines in combination with the synergistic actions of the pyridines and acetonitrile, the hydrogen sulfide absorbent has the advantages of high reaction rate, favorable water solubility, simple technique and low cost. The hydrogen sulfide absorbent can be used for quickly and efficiently absorbing hydrogen sulfide in gas produced from the shaft, and the products are stable and soluble in water; and the hydrogen sulfide absorbent has favorable effects for shafts with low or slight hydrogen sulfide gas content, reduces the corrosion of hydrogen sulfide to the shaft tube pillar, and protects the in-site personnel from poisoning of hydrogen sulfide.

The invention relates to a raloxifene emplastrum and a preparation method thereof. Raloxifene microemulsion is made into a transdermal emplastrum which is divided into an anti-adhesion layer, a viscose layer, a backlining layer and a medicine storage layer. The raloxifene microemulsion taken as a medical ingredient of the raloxifene emplastrum comprises the following ingredients: raloxifene taken as an active ingredient, polysorbate taken as surfactant, propanediol taken as cosurfactant, pure water or distilled water, and the like. Except for the medical ingredient, a plurality of nonpolar polymers, plasticizing agent, caking agent, transdermal enhancing agent and antioxidant are also added in the emplastrum. Compared with the prior dosage forms, such as tablets, the invention has the remarkable advantages of durable medical effect, safety, low toxicity, simple, convenient and sanitary, and accurate medical dosage.

The invention provides a box culvert jacking device which comprises a box culvert, three layers of steel gratings, jet concrete, four rows of pipe curtains and joist steel.The four rows of pipe curtains are arranged to be a hollow cube, every two adjacent upper-row pipe curtains are connected through the corresponding joist steel, every two adjacent left-row pipe curtains are connected through the corresponding joist steel, every two adjacent right-row pipe curtains are connected through the corresponding joist steel, one layer of steel gratings are connected with the row of pipe curtain located on the upper portion in the hollow cube, the other two layers of steel gratings are connected with the two rows of pipe curtains on the two side faces in the hollow cube respectively, each layer of steel gratings are filled with jet concrete, and the box culvert is inserted into the hollow cube.The invention further provides a box culvert jacking method.By means of the box culvert jacking device, difficulty appearing in construction can be overcome, and higher benefits can be created.By means of the box culvert jacking method, subgrade settlement can be effectively controlled, and the method is suitable for box culvert jacking under the hard geological condition.

The invention discloses a magnetic textile which comprises a base cloth layer and an elastic resin layer. The elastic resin layer contains solvent type polyurethane resin and permanent magnet materials, and metal elements in the permanent magnet materials include one or more of iron, boron, cobalt, neodymium, samarium and praseodymium. The textile has permanent high magnetic density magnetic therapy performances, is soft in hand feeling and further has a waterproof performance.